// ************* MCBOOM LTD **************
//*********** FORM VALIDATION ***********
//    
//      o CHECK EMAIL ADDDRESS
//      o CHECK ALL REQUIRED FIELDS CONTAIN DATA
//     
//
//**************************************

function checkEmailAddy(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid email address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid email address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid email address")
		    return false
		 }

 		 return true					
	}

function ValidateNewsletterSignup(){
	var Email=document.newletterSignup.Email
	
	if ((Email.value==null)||(Email.value=="") || (Email.value=="Email address")){
		alert("Please enter your email address")
		Email.focus()
		return false
	}
	if (checkEmailAddy(Email.value)==false){
		Email.value=""
		Email.focus()
		return false
	}
	   
	var Name=document.newletterSignup.Name
	if ((Name.value==null) || (Name.value=="") || (Name.value=="Name")) {
		alert("Please enter your name")
		Name.focus()
		return false
	}	 
	
	if ( document.newletterSignup.optIn.checked == false )
    {
        alert ( "In order to sign up to the newsletter, please check the opt in box and click the Submit button again." );
        return false
    }
	return true
 }